Loading device for motor trucks



VJuly 12, 1927. 1,635,338`

y .c-s. w. oTTERsoN 4 LOADING DEVICE FOR MOTOR TRUCKS .Filed Feb, 18.19212 2 Sheets-Sheet 1" inventan 7c www,

v 1927' l635,338 July 12 G. w. oTTERsoN LOADING DEVICE `FOR MOTOR TRUCKSFiled F6518, 1922 l 2 sheets-sheet 2` m venan 7a Wun) Patented July 12,.1927.

GEORGE w. oTTBBSomeETOBoNTo, oNTARIo, CANADA, ASs'IGNoB, BY l MESNBASSIGNMENTS, ory noun-Burris `'ro LissA A. oTrEBsoN, or SEATTLE, fwAsHINe'roN, ANDy oNE-BIFTH rro JOSEPH F. BRANDENBURG, oF NEW YORK, N.Y.

'Y BOABINGBBVICE FoRMoToB TRUCKS.

Application md February 18, 1922@ seria1'N0.-537,c49.

The object of the invention is to provide afmotor truck machine having alvery sim- Y ple, eflicient and conveniently controlled power-operatedloading and unloading ap-l The invention 'will now bede-1` scribed withreference to a preferred emparatus.

bodiment and f will be more particularly pointedl out in the-appendedclaims.

In thedrawings, Figure 1 is an elevational view of a motor truckequipped with my devlce.

' Figure 2 is a sectionaldetail of the trolleyhoist driving and't'rolleytravelling-mecha- Figure '3 is an enlarged end elevational view of thesupporting trackwayv showing the trolley carried thereon.

In carryingy this invention into effect the truck body 1 is providedwithrigid frames 2 which extend across and above the body and supportedcentrally of these frames is a longitudinal trackway 3. This trackway isformed of `a pair of channel bars V'arranged with the flanges turnedinwardly and 'supported on the bottom flanges is'a trolley 4 whichcarries the hoisting gear. rIlhis gear maybe of any standard2construction and not specifically shown' otherthanthatfit 1s driven by aself-locking worm-gearing comprising a worm4 wheel 5 whichmeshes withaworm6. f The worm-6 constituting the driving element of this gearing isslidably mountedon a squared shaft 7 which v'extendsffromv end to end'of' the trackw'ay, jp'assing "through and being supported -in'suitablebearings 8 inthe trolley frame. v Y

At the forward end the squared shaft 7 is supported and held againstlongitudinal movement by a bearing in an angle bracket casing 9 andhas-secured thereto a bevelled pinion 10. A suitable support, notshown,l

may be provided for the rearrend of the shaft.

A vertical shaft v11 is journalled 'in' the casingV 9 and has secured atits upper end a pinion 12 meshing with Athe pinion 10. This shaftextends downwardly and is divided toward the 'lower end, 'the membersbeing connected lby a `coupling sleeve 13y which is secured tothe uppermember an-d has .a lclutch face at the lower end adapted tobe engagedbya slidable clutch collar 14. Thisv DIRECT ANDA clutch collar ismounted to slide on androtate with the lower member 15 ofthe' shaftwhich is supported in bearings 16 in arcas-E "4'" ing 17 and at itslower end is provided withV a bevelled pinion 18.

driven from the engine of the 4truck is mounted in bearings in thecasing 17 'and freely rotatablev on journals inside the Vcasing 17 andaxial with the shaft 19are bevel gear wheels 20 and 21 of a reversinggearing, which are constantly in mesh withthe bevel pinion 18.y l

A clutch sleeve or reversing member22 A horizontal shaft 19'suitablycoupled and slidably keyed to the shaft 19 operates either one or otherof the bevelled wheels 20 ork 21 which thus imparts motion in either onedirection or the other to the verticaly shaft.

A worm 23 is free on the vertical shaft member 15 above the casing 17and this is provided with a clutch surface to be engaged by theclutchvcollar 14'.

auA

The `worm 23 meshes withv a worm wheel" 24 which drives a drum 25.Around' thev drum' 25 iswound a cable 26, bothcourses of. which extendupwardly over the pulleys 27 arranged at the end of the overheadstructure. One course of the cable vpasses 'die rectly and is fastenedtothe trolley 4, and

the other courseextends around a pulley 28 at the rear end of the fixedframe and thence vQ The cable is thus,.i11 effect, an endless vopfelrfforwardly and is connecteduto, the trolley.

ating member.

Vao

It Win thusbe seenuiaf by Shiftigthe clutch sleeve.- 22 into one extremepositionf `9o or the other, the clutch 14 beingin'the posi-1.

Vtion shown in Fig. '2, the trolley may be caused to travel inwardly oroutwardly and member 13. When the Aoperation of the hoisting mechanismis stopped bythrowing either of the clutches to neutrahthe loadwillr besustainedby reason of the l self-locking e? worm gearing V5, 6.

'The vertical operatingvclutch `sleeve isroperated by a bell cranklever'29 to the upper i end of which is'connected a rod 30'.'k 'ThisVrod extends vlongitudinally of the truck' frame from the front to theback end bein supported,v in slidable bearings. rI he clntc sleeve 14 inconnection with the cooperative clutch elements on the coupling sleeve,13,` and the Worm 28 constitutes laselective clutch,

forconnectingeither the` squar'ejshaft 7 'or Y theJ` cable 26Avvithj'the reversinggear'in the tremely simple .and easily operated.

casing 17 connected to be 'driven from the power plant of the vehicle.

A short lever. 81 pivotally mounted'in thel bottom of the casing 17operates .the clutch sleeve 22. This is operated by a link 32 and lever33.4 t 1 I'Od-l: lS thelever and is 'supported .parallel lwith thenrod80 `and also-eXtends yfrom the front to the back end of the truck... Thearrangement Aof thesefrods foroperatingthe levers `enables the persontransferring the load toA contro-l themoveinent Of the .lifting andcarryingmechanismffrom any point alongside thel truck 01" on it` orfrom-...the rear thereof.

A. construction. suchy as described;v is eX The overheadtrackway'carrying the trolley eX- tendsbeyond thefrear end of the .truckframe andiby manipulating thegcontrolsthe trolley may be carried backztothe farthest end. lf

- alheavy Weight is vto be lifted .the controlv mechanism isAoperated,torotate the squared shaft 7 thereby operatingy the Worm '6.and

. ,g posited a.

Wormffwheel 5 Lto raise the load.- Then the load has .been raised the`desired' height, the

clutch sleeve 14s is withdrawn*fromv the member .13 and. by`manpnlatingfthis clutch to operatethe Worm drive of thecable drum. and.properly` positioning the clutch 22; thev vehicles With a devicereadily understood-that a truck may be loaded` expeditiously with:heavy.v merchandise-andwithout strainer danger to thev operator. Y

LWhat I claim. asmy invention is :-v

lz.; A- machine of the vcharacter-described comprising a. road vehiclehaving an oven.

. head1 frame on its body-With a Vtrack on said frameextendinglengthwise. ofthe body, a; trolley movable. along said track,aLlongitudinal rotaryfshaf-t carried. by the frame,- lneansforldriving-said longitudinal shaft ini-either direction, .and a'hoist andimeans for@ operating the same :carried by. saidl trolley, said means onthe trolley .having'a member in slidable driving connection Withsaidshaft and; comprisingv a lockvv of .self-holding meshing gears through.which .the hoist isf operated .from said .shaft to. :raise and;r lower'.

connected to :upper end of;V

such Kas describedi the load and whereby to hold the load at any height.or point lengthwise of they Avehicle body. i

2.'A machine of ythelcharacter described Comprising a road vehiclehaving. aIiQVelhead; frame onY its body with;v a'jtra'ck;A onfsaid frameextending lengthWiseA of thev body, a trolley movable along said' track,a longitu dinal rotary shafty carried by the frame, a

source of power, means for causing said longitudinal shaftto be `driven1n either direction from said source and for stopping the the trolleyhavinga .member in K.slidable driving connection with said shaft andcoin-z prising a lock of selfholding meshing gears through which thehoist is ,operated from application of powerto said shaft,l separate Ymeans whereby the trolleyis jtraversedgin either direction from `saidsource-of power,- and a.y hoist; andl means for yoperating the samevcarried said trolley, said means on said shaftfto raise and lowerthefload and whereby to hold the load at any height or point. lengthwiseof thevehicle body..

` 3. A machine of `the character jd'escribed;

comprising in combination with a motor truck', an overhead frame`thereonand ar track. extending lengthwise. on said frame, a trolleymovable along said track, aV rotary shaft .carried longitudinally by'said over* head frame, power means for driving said shaft,aself-holding-.Worin gearing carried by the trolley, said shaft passingvin driving relation through the;- .i worm; of said .gearing andthe worm.bei-ng slidable4 along the. shaft and a hoisting. gear on the, vtrolleyto.. be.v

driven by said shaftand Mvvorrn.y gearing at.,

any poi-nt.

4f.v A niachineof the character described'. comprising in comloination4with a motor truck, anv overhead frarnen.thereon,l and. V trackeXtend-inglengtfhwise onsaid frame a` trolley movable along said track,a yrotary shaft. carried ,longitudinally by. said over-` head framepower means;.for.driving said-- shaf,t a` self-holding .worm gearingl,carried by the trolley, *Slnid` Sil-laitv passing iii-driving relationthrough the worin. ofY saidgearing and the Worm being slidabley the?shaft,` l. a` hoisting gearv on the trolley to.- belk driven 1 by saidShaft andworm gearinga-t point,

and' cable means guided about; the front and reareIlGlS, 0f fram@froptraversing Said, trol-ley.. y g

5; A machiney of; the!- charicterg yo lescriloedi` comprising incombination with a motor' tnuck an overhead lfrzurne -theneon-,- and* atrack extending; lengthwvise ont saidrfrafme, trolley movable along`said;traclc,. a. rotary` shaft carriedlongitudinallyby saidsoverliead'frame, aqselfrholding gearingcarried byf'the;

trolley,x said shaft., passingaim driving rela. e. tion through aJmember' off said. gearingvand.

said vmember.' being slid'allle'ffalongthe shaft,

a. hoisting gear om the trolley to be. driven'.-

by said shaft and gearing at any point, and driving gearing in operativerelation to the power mechanism of the truck extending upward at thefront of the frame to driving connection with the forward end'of saidshaft.

v 6. A machine of the character described comprising in combination witha motor truck, an overhead frame thereon, and a track extendinglengthwise on said frame, a

trolley movable lalong said track, a rotaryv Y comprising in combinationwith a Amotor truck, an overhead frame thereon, and a track extendinglengthwise on said frame, a trolley movable along said track, a rotaryshaft carried longitudinally by said overhead frame, a self-holdinggearing carried by the trolley, said shaft passing in driving relationthrough a member of said gearing and said member vbeing slidable alongthe shaft, a

hoisting oear on the trolley to bel driven by said shaft and gearing atany point, cable means for traversing the trolley, a reversing gearingadapted to be operated from the power plant of the vehicle, and clutchmeans adapted to connect either the longitudinal shaft or the cablemeans with said reversing gearing so that either may be dri-ven `ineither direction.

8. A machinevof the character described comprising in combination with amotor truck, an overhead frame thereon, and a track extending lengthwiseon said frame, a

trolley movable along said track, a rotary `shaft carried longitudinallyby said overhead frame, a self-holding gearing carried bythe trolley,saidrshaft passinoin driving relation through a member of said'gearingand said member being slidable along the shaft, a hoisting gear on thetrolley to be driven by said shaft and gearing at any point, drivinggearing in operative relation to the power mechanism of the truckextending upward at the front of the frame to driving connection withthe forward end of said shaft, cable means also driven toward the frontof the frame for operating the trolley, and control members for theshaft-driving gearing and the cable means extending longitudinally tothe rear end of the frame.

v GEORGE vW. OTTERSON.

